/*
 * Facebox (for jQuery)
 * version: 1.3
 * @requires jQuery v1.2 or later
 * @homepage https://github.com/defunkt/facebox
 *
 * Licensed under the MIT:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright Forever Chris Wanstrath, Kyle Neath
 *
 * Usage:
 *
 *  jQuery(document).ready(function() {
 *    jQuery('a[rel*=facebox]').facebox()
 *  })
 *
 *  <a href="#terms" rel="facebox">Terms</a>
 *    Loads the #terms div in the box
 *
 *  <a href="terms.html" rel="facebox">Terms</a>
 *    Loads the terms.html page in the box
 *
 *  <a href="terms.png" rel="facebox">Terms</a>
 *    Loads the terms.png image in the box
 *
 *
 *  You can also use it programmatically:
 *
 *    jQuery.facebox('some html')
 *    jQuery.facebox('some html', 'my-groovy-style')
 *
 *  The above will open a facebox with "some html" as the content.
 *
 *    jQuery.facebox(function($) {
 *      $.get('blah.html', function(data) { $.facebox(data) })
 *    })
 *
 *  The above will show a loading screen before the passed function is called,
 *  allowing for a better ajaxy experience.
 *
 *  The facebox function can also display an ajax page, an image, or the contents of a div:
 *
 *    jQuery.facebox({ ajax: 'remote.html' })
 *    jQuery.facebox({ ajax: 'remote.html' }, 'my-groovy-style')
 *    jQuery.facebox({ image: 'stairs.jpg' })
 *    jQuery.facebox({ image: 'stairs.jpg' }, 'my-groovy-style')
 *    jQuery.facebox({ div: '#box' })
 *    jQuery.facebox({ div: '#box' }, 'my-groovy-style')
 *
 *  Want to close the facebox?  Trigger the 'close.facebox' document event:
 *
 *    jQuery(document).trigger('close.facebox')
 *
 *  Facebox also has a bunch of other hooks:
 *
 *    loading.facebox
 *    beforeReveal.facebox
 *    reveal.facebox (aliased as 'afterReveal.facebox')
 *    init.facebox
 *    afterClose.facebox
 *
 *  Simply bind a function to any of these hooks:
 *
 *   $(document).bind('reveal.facebox', function() { ...stuff to do after the facebox and contents are revealed... })
 *
 */
(function ($) {
    $.facebox = function (data, klass) {
        $.facebox.loading(data.settings || []);
        if (typeof klass == 'undefined') {
            klass = 'comment';
        }
        if (data.ajax) fillFaceboxFromAjax(data.ajax, klass)
        else if (data.image) fillFaceboxFromImage(data.image, klass)
        else if (data.div) fillFaceboxFromHref(data.div, klass)
        else if ($.isFunction(data)) data.call($)
        else $.facebox.reveal(data, klass)
    }

    /*
     * Public, $.facebox methods
     */

    $.extend($.facebox, {
        settings:{
            opacity:0.7,
            overlay:true,
            loadingImage:baseUrl + 'assets/admin/images/facebox/loading.gif',
            closeImage:baseUrl + 'assets/admin/images/facebox/close.png',
            imageTypes:[ 'png', 'jpg', 'jpeg', 'gif' ],
            title:'',
            faceboxHtml:'\
    <div id="facebox" style="display:none;"> \
      <div class="popup"> \
      <div class="faceboxTitle">\
          <div class="left label"></div><a href="javascript:void(0)" class="close"></a>\
      </div>\
        <div class="faceboxContent">\
        </div> \
      </div> \
    </div>'
        },

        loading:function () {
            init();
            if ($('#facebox .loading').length == 1) return true
            showOverlay();
            $("#facebox .faceboxTitle .label").html($.facebox.settings.title);
            $('#facebox .faceboxContent').empty().
                append('<div class="loading"><img src="' + $.facebox.settings.loadingImage + '"/></div>');
            $('#facebox').show().css({
                top:getPageScroll()[1] + (getPageHeight() / 10),
                left:$(window).width() / 2 - ($('#facebox .popup').outerWidth() / 2)
            });

            $(document).bind('keydown.facebox', function (e) {
                if (e.keyCode == 27) $.facebox.close();
                return true
            });
            $(document).trigger('loading.facebox');
        },

        reveal:function (data, klass) {
            $(document).trigger('beforeReveal.facebox')
            if (klass) {
                $('#facebox').removeAttr('class').addClass(klass);
            }
            $('#facebox .faceboxContent').empty().append(data)
            $('#facebox .popup').children().fadeIn('normal')
            $('#facebox').css('left', $(window).width() / 2 - ($('#facebox .popup').outerWidth() / 2))
            $(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
        },

        close:function () {
            $(document).trigger('close.facebox');
//            $("body").removeClass("overflow");
            return false
        }
    })

    /*
     * Public, $.fn methods
     */

    $.fn.facebox = function (settings) {
        if ($(this).length == 0) return true;

        init(settings);

        function clickHandler() {
            $.facebox.loading(true);

            // support for rel="facebox.inline_popup" syntax, to add a class
            // also supports deprecated "facebox[.inline_popup]" syntax
            var klass = this.rel.match(/facebox\[?\.(\w+)\]?/);
            if (klass) klass = klass[1];

            fillFaceboxFromHref(this.href, klass);
            return false;
        }

        return this.bind('click.facebox', clickHandler);
    };

    /*
     * Private methods
     */

    // called one time to setup facebox on this page
    function init(settings) {
//        $("body").addClass("overflow");
        if ($.facebox.settings.inited) return true;
        else $.facebox.settings.inited = true;

        $(document).trigger('init.facebox');
        makeCompatible();

        var imageTypes = $.facebox.settings.imageTypes.join('|');
        $.facebox.settings.imageTypesRegexp = new RegExp('\\.(' + imageTypes + ')(\\?.*)?$', 'i');

        if (settings) $.extend($.facebox.settings, settings);
        $('body').append($.facebox.settings.faceboxHtml);

        var preload = [new Image(), new Image()];
        preload[0].src = $.facebox.settings.closeImage;
        preload[1].src = $.facebox.settings.loadingImage;

        $('#facebox').find('.b:first, .bl').each(function () {
            preload.push(new Image());
            preload.slice(-1).src = $(this).css('background-image').replace(/url\((.+)\)/, '$1');
        });

        $('#facebox .close').click($.facebox.close).html('<img src="' + $.facebox.settings.closeImage + '" class="close_image" title="close">');
        return true;
    }

    // getPageScroll() by quirksmode.com
    function getPageScroll() {
        var xScroll, yScroll;
        if (self.pageYOffset) {
            yScroll = self.pageYOffset;
            xScroll = self.pageXOffset;
        } else if (document.documentElement && document.documentElement.scrollTop) {     // Explorer 6 Strict
            yScroll = document.documentElement.scrollTop;
            xScroll = document.documentElement.scrollLeft;
        } else if (document.body) {// all other Explorers
            yScroll = document.body.scrollTop;
            xScroll = document.body.scrollLeft;
        }
        return new Array(xScroll, yScroll)
    }

    // Adapted from getPageSize() by quirksmode.com
    function getPageHeight() {
        var windowHeight;
        if (self.innerHeight) {    // all except Explorer
            windowHeight = self.innerHeight;
        } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
            windowHeight = document.documentElement.clientHeight;
        } else if (document.body) { // other Explorers
            windowHeight = document.body.clientHeight;
        }
        return windowHeight
    }

    // Backwards compatibility
    function makeCompatible() {
        var $s = $.facebox.settings;

        $s.loadingImage = $s.loading_image || $s.loadingImage;
        $s.closeImage = $s.close_image || $s.closeImage;
        $s.imageTypes = $s.image_types || $s.imageTypes;
        $s.faceboxHtml = $s.facebox_html || $s.faceboxHtml;
    }

    // Figures out what you want to display and displays it
    // formats are:
    //     div: #id
    //   image: blah.extension
    //    ajax: anything else
    function fillFaceboxFromHref(href, klass) {
        // div
        if (href.match(/#/)) {
            var url = window.location.href.split('#')[0];
            var target = href.replace(url, '');
            if (target == '#') return;
            $.facebox.reveal($(target).html(), klass);
            // image
        } else if (href.match($.facebox.settings.imageTypesRegexp)) {
            fillFaceboxFromImage(href, klass);
            // ajax
        } else {
            fillFaceboxFromAjax(href, klass);
        }
    }

    function fillFaceboxFromImage(href, klass) {
        var image = new Image();
        image.onload = function () {
            $.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass)
        };
        image.src = href;
    }

    function fillFaceboxFromAjax(href, klass) {
        $.facebox.jqxhr = $.get(href, function (data) {
            $.facebox.reveal(data, klass)
        })
    }

    function skipOverlay() {
        return $.facebox.settings.overlay == false || $.facebox.settings.opacity === null
    }

    function showOverlay() {
        if (skipOverlay()) return true;

        if ($('#facebox_overlay').length == 0)
            $("body").append('<div id="facebox_overlay" class="facebox_hide"></div>');

        $('#facebox_overlay').hide().addClass("facebox_overlayBG")
            .css('opacity', $.facebox.settings.opacity)
            .click(function () {
               // $(document).trigger('close.facebox');
            })
            .fadeIn(200);
        return false;
    }

    function hideOverlay() {
        if (skipOverlay()) return true;
        $('#facebox_overlay').fadeOut(200, function () {
            $("#facebox_overlay").removeClass("facebox_overlayBG");
            $("#facebox_overlay").addClass("facebox_hide");
            $("#facebox_overlay").remove();
        });
        return false;
    }

    /*
     * Bindings
     */

    $(document).bind('close.facebox', function () {
        if ($.facebox.jqxhr) {
            $.facebox.jqxhr.abort();
            $.facebox.jqxhr = null
        }
        $(document).unbind('keydown.facebox');
        $('#facebox').fadeOut(function () {
            $('#facebox .faceboxContent').removeClass().addClass('faceboxContent');
            $('#facebox .loading').remove();
            $(document).trigger('afterClose.facebox');
        })
        hideOverlay();
    })

})(jQuery);
